abstract appearance background brown colored coloring colors coloured colouring colours conglomerate contours contrast contrasts cracks fissures flaws grit gritty layered layers levels light lines natural rock rock-face rockface rocky rough rugged shade shadows shape shaped shapes stone strata stratum sunlight sunny sunshine surface surfaces texture textured textures veins wallpaper antioxidants base berries berry beverage bunch chalice cluster clustered crunchy cultivars cup drink drinking drinking-vessel edible flavour food foot footed-cup fruit goblet grapes green healthy juicy liquid low-calorie nutritional nutritious refections reflecting resveratrol satisfying seedless silver silvery snack stem sweet table-grapes tasty vitis-vinifera mica silicate